Valve mechanism for internal-combustion engines.



A. E. OSBORN.

VALVE MECHANISM FOR INTERNAL COMBUSTION ENGINES.

Patented Mar. 21, 1911.

APPLICATION FILED JULY 3, 1909. 987, 1 64:.

3 SHEETSSEEET 1.

' WITNESSES:

INVENTOR A. E. OSBORN. VALVE MECHANISM FOR INTERNAL COMBUSTION ENGINES.

APPLmATion FILED JULY 3, 190a.

' Patented Mar. 21, 1911.

s SHEETS-SHEET 2.

the use 0 puppet valves which, at best, are noisy, un-

UNITED STATES PATENT OFFICE.

ALDEN OSBORN, OF NEW YORK, N. Y.

VALVE MEdHANISM FOR- IiNTERNAL-COMBUSTION ENGINES.

Specification of Letters Patent.

Application filed July 3, 1909.

Patented Mar. 21, 1911. Serial No. 505,860.

To all whom it, may concern:

Be it known that I, ALDEN E; Osnonn, a citizen of the United. States,residing at New York city, in the county and State of New York, haveinvented a new and useful 1mprovement in Valve MechanismforInternal-Combustion Engines, of which the fol lowing is a specification.a

My invention relates .toimprovements in valve mechanism for internalcombustion engines and particularly to valve mechanismincludingreciprocating slide valves, and means for positively operating them ineither direction.

The valve mechanism commonly employed in connection with four-cycleinternal combustion en ines of the present day involves cam opened andspring closed reliable and unsatisfactory in almost every respect. I amaware that attempts have been made to use reciprocating slide valvesinoonnection with th s type of engine, but so far as I am at=presentaware, none of these attempts has been'successful, and it is the mainobjectof my present invention to provide efficient valve mechanism ofthis character. I I

' To th s end, my invention consists in many noveldetails ofconstruction and combina tio'ns of'parts, such as will be fully pointedout hereinafter, and in ordenthat my invention may be thoroughlyunderstood, I will now proceed to descrlbefcertain embodiments thereof,having reference to the accompanying drawings illustrating the same, and.will thenpointF-out the novel features in claims.

In the drawings: Figure l is a view in partial sectional elevationthrough a valve mechanismconstructed in accordance with my invention,showing-the same applied to an internal combustion engine. Big. 2 is adetail sectional view. upon a somewhat larger scale showing the valvesin different positween the valve. operating valvesjoperated thereby. fi'iver'ticalrtransverse sectional. view of an 1ntions than those in whichthey are shown in Fig. 1. Fig. .3 is V a. diagrammatic view showing/therelationship of movement beshaft, and the ig. 4 is a central ternalcombustion engine provided with a modified form of. valve mechanismconstructed iii accordance with my invention.

Referringfirst of. allrbo F igls. 1 and 2, the engine therein shown is te ordinary open communication with the engine cylinder by meansof apassage 27. This valve casing comprises a cylindrical bore 1]. and atubular member 12, the inner and outer walls of which are cylindricaland are concentric with the cylindrical bore 11. A. tubular valve 13 isdisposed between the cylindrical bore 11 and the outer walls of thetubular member 12, the same bein Y arranged to act as a distributingvalve as will prosently be explained, while a piston valve 1-1 isdisposed within the cylindrical bore of the tubular member 12, thesamebeing hereinafter termed the main valve of the engine. The tubularmember 12 is provided with one or more transverse passages 15 there-.through, the same bein controlled upon one side by the main valve 14and upon the other side by the distributing valve 13, and thedistributing valve is provided with two sets of cross-over ports orpassages 16 and 17 which are adapted to alternately connect the saiddistributing passage 15 with inlet and exhaust chambers 18 and 19 withwhich the valve casing 10 is provided. valve 14 is provided with a valverod 20 the end of which is secured to'a,cross-head- 21, and the valveoperating shaft 8 isprovided with an eccentric 22 having an eocentricstrap 23 and connecting rod, the end. of which is pivotally connectedjat24 with the said cross-head. By this means, the rotary movements of theshaft 8 -8.l8-Il;l lI1S- mitted in the form of'reciprocating move; mentsof the valve 14, and because of the fact that the axis of rotationof'tho shaft 8 is disposed eccentric witlhrespect to the a The main pathof movement of the axis 2-lyitivill follow that the angular mpvement,'v(if'thc shaft will be greater when moving the valve in one directionthan when moving-the valve inthe other direction.

ios.

This wlll readilyj v befunderstood by reference 'tothe'zdiagram'- matip'view in Fig. 3, in whicl'u it ivilll he seen,"I.

ilin yafline passing through the centers of 1 gthtee'parts '24, Sand22when the valve is'initsuppermost positiomwill he oblique too, similarline passing through the parts when the valve is in its lowermostposition. The velvexncves from its uppermost to its lowermost positionwhile the shaft moves through an angular position from one end oftheselines to the other, and in the arrange: ment of the parts, it will beseen that the valve will move slowe'nwhen moving downwerd'then it willwhen being moved upward, for the movement in the forme'rdirection willbe during thetime the shaft moves through the greater are and hencethrough more than one-half of a complete movement of rotation of thesaid shaft. -The distributing valve 13 is arranged to bemoved by themain valve near. the end of its movement in provided at its lower endwith n flange which is adapted to be engaged by the main valve when nearthe lower end of its downward inovementondhy a collarQG carried btheivelve 20 when near the 11 per end of its movement. The movement 0the distributing velvc' is quite small, only such as is' necesssry tomo'vethe ports or passages l8 and 17into'o3nnnun1cst1on with so thedistributingpitssage15,the two extremi- When the parts are in theposition shown in J 5 ing stroke t ties of its movement being shown inFigs.

1' and 2, and these-movements are required to take place atsubi-jttlntis lly the end of the reciprocating movements of. the mainvalve,

which it is shown in'Fig-filto the position in which it is shown in13553 at the extremity of its down-Ward movement, and to return thedistributing valve to the position in which it is shown inFig. 1 atsubstantially the extremity of its upper movement. The friction of thepacking rings between the distributing valve, the inner cylindrical'hore11 and the outer. Wall of the leakage, will be suiiicient to hold thedistributing valve against accidental movement intermediate t mes.

The operation of the parts is as follows:

Fig. 1, the enginepisinn is at the top of the cylinder and the cylindercontains a charge of compressethgases; Assuming. that fthe tit eitherdirect-ion. The distributing valveis hence the main valve is designed tomove the distributing valve from "the POSIHOIX/ in tubular member 12employed to prevent d the valve operating; irestion, to the extentlvence of the main valve 14 will be moved practically onehalf its strokeand it will have commenced to uncoverthe passage 15, thereby aifordingcommunication through the valvecasing between the engine cylinder andthe exhaust chamber 19. This passage-is fully u.nc0veredhy the time theengine piston has just As the en-1" gine piston continues to ascend onthe exhaust stroke, the. main valve 14-. will concommenced its' returnstroke.

tinue to descend and after the engine piston has reached its uppermostposition and just commenced to movedownward again, ,a pointin the strokeof the valve 14 is r a hedwherein the flange 25 is engaged by themainvalve, and inthe remainder of the [downward movement of the valve,the distributing valve 13 is moved therewith so that the parts willfinally-reach the positionshown in Fig. 2. Thecflfectof the lattermovement is to close communication between the exhaust chamber 19and-thedistributing passage '15- and to open communication betweeuthe"said passage,- 15 and the inlet chamber 18,,iithe inlet chamber beingin full comn'iunicntion with the'passage 1 5 when the engine pistonhasmoved downward about one-quarter of-its suction sti-oke. As the pistoncontinues to move downward, the

main valve will commence to move, upward and its speed will nowcommence'to accelerate [I by means of the eccentricposition of theshe-it e as above described; About thetiine the suction stroke of thepiston has been completed and the piston has commenced its returnstroke, the main valve will again cover the distributing passage 15 soas to close the same so that upon the continued compression movement ofthe. piston, the

cylinder will be entirely closed. As the englne piston completes itsupward movement to compress the charge, the main valve will continue andcomplete its upward move-. ment, and near the end thereof-it will, by

reason of the engagement of the collar 26 on the valve rod 20 with theflange 25 of the distributing valve13, carry'the distributing valve upwith it in the position in which it a is shownin Fig.1, whereby todiscmincct the inlet charnberfroni' the distributing passage, and againconnect the exhaust charm her therewithso that when the main valve nextuncovers thedist 'utingv passage 15 vit will opeii "tlielicylin'd'er toexhaust." gThe foregoing completes the cycle of operation the parts arenow back in the" position in which they are shown in Fig. 1 ready for anew. cycle to. hecqmmenced; I 1; i

In the modified form of my invention shown in Fig. 4, the main valve isin the form of and 15 t. 'lhe nid tubular shell 30 which surrounds,Jfiji'lil'lfi with, the mam piston 31 mew valve 13 connected by meanserni with e cross head 33, the. being the equivalent of the cross hea'd'1 3 positiom-inlwhichposition they connect the 21 of the structure shownin the other figures, the saidcross-head being connected to,and operatedby, an ecce tric 22 upon the L'valve o' is provided withslots 34near theupper end. thereof which are engaged proper time with openings tingshaft 8. T e said valve 30 to register at the 35 in the cylinder 36which surrounds the valve '30 and piston w the structure in the other31, thesaid openings constituting a distribut' ing passage equivalent tofigures.

This passage may be connected with either the inlet 'or exhaust chambers18, 19 by a suitable "valve mechanism such as that shown in,

Fig. 1. Because ofthe fact, however, that ,a valve for this ,pur ose'constructed like that shown in the ot er figures, would be of very largesize, I-preferably provide one or more distributing valves 37disposed'eccentric with respecttoithe vsaid main valve 30. Each of the,valvesfi? shown in Fig. 4

comprisestwoiheads adapted in their move- 'ments;tofconnectcithentheinlet chamber 18 withthe saidjdistributing passage 35, or the exhaust;chamber;. 19 therewith. The valves are provided; with stems 38 havingcollars the. said-.niain valve 30. The

.va'lves3 sage Initllie'i will connect; the. n

; e toqdfbyia msne construction offthislkind not' only ermits a H also.distributes t ement with by, and with, distributing are; shown as .intheir? uppermost 39., 4,0,- .ther nn or, c enga flanges 41' .u on tubes42 carrle exhaust chamberjwith the distributing pasrm'ost:v positionthey chamber with the said be readily und s ri iiigspas v ticnlo tdfrawin he.u cfv ry ifili .distr but ng va. ves but .tage, preservesamore even. distribution of heat, and. serves .to-afi'ord a more directpassage forthe gases. The'operation of anenjgine of this constructionwillbe-similar to that of thelengine shown,- in the. other figures,

I ter, may be ci valves. 30 nd and further.detaileddescription thereofwill be unnecessary, herein.

In the constructionislio wn; in Fig. 4 the f 37 iandadjacent parts areshown as surround'e'd .by. a" suitable jacket ,within which acl'ngmedium, such as waedfforthe urpose of keepingv down th temperature0F Other coolingjmean'smay,

having inlet. and exhaust c .pa'ssages, and it -will, of course,- be.under stood that the valve-mechanism above, de-

scribed may bappl edto a laitg variety of different formsandconstructions of interna .near each "end of. its movement "forconnectcombustion engine.

What I claim is; v 1. A valve mechanism com rlsmg a casing liambe'rs anda -cnd of the said the passage 15 in e, gases to, better advan e Pa ofcourse, be.em'-' ployed, such as the radiating fins-in; the form ofengine shown in/Figs, 1; and 2' the gases constituting a fresh chargealso tendingtoi distributing passage, a valve located at one passage forcontrolling the same, and means located at the other end of the saidpassage, and operated by the movement of the said valve, for connectingthe said passage with either the said inlet or the said exhaust chamber.

2, A valve mechanism comprising a casing having inlet and exhaustchambers and a a distributing passage, a valve located at one 7 end ofthe said passage for controlling the same, and a sccond valvc'located atthe other end of the saidpassage, and operated by the movement of thefirst said valvc, for connecting the said passage with either the saidinlet or the said exhaust chamber. 3. A valve mechanism comprising acasing having inlet and exhaust chambers and a distributing passage, atreciprocating valve located at one endof'the; said: passage forcontrolling the same, a id-=mean's-located .at the other end. oftheisaid-passage, and o erated by the'movemento thcysaid va1vc, or connectingthe saidypassageiwitlt either'the said inlet or the s'ai exhaustchamber.

4. A valvefinechaniism comprising a casing having inlet a cl exhaustchambers and a distributing; passaga a reciprocating valve located aton'eend of thesaidpassage for controlling the same; and asecondreciprocating valve locatedi'atvthe other end of thesaidipassa'ge,andoperatedkby the'movement of the first saidvalve,"for'co1mectin the said passagewith either the said inl et or thesaid exhaust chamber.

5. A valve mecha nisnrcomprising a casing having inlet;andexhausticliambers and a distributing passage, a; reciprocating slide.valve. located at one end of the said passage for controllingithe same,and means located at the other endjof the'said' assage, and operated bythe" movement 0 j the said valve for connecting the" said passage witheither the said inlet or the saidexhaust chamber.

6. valve mechanisni' comprising a casing. having slet and 'exhaustchambers and a distributing passage, a reciprocating slide valve 1located at one end ofthe said passage for controlling the same; and asecond reciprocating. slide 'val've locatedhttlie other end of thesaidpassa'ge, andoperated-byv the movement; ofthe first saidf valveforconnecting the said-passage with'"either the said inlet .or thesaid'exhaust'chamber. v

7-. A-va ve; mechanism comprising a cas- 0 ingi having inlet Y andexhaust chambers and i d s-Cr b? s1 P age t t ei wated at one end ofthelsairl' passa'ge forgcontrolling the same, and ineans operated' by themove ment of the said valve 'whenthe Valve is ing the other endof*thesaid:- passage. with either the said" inlet or the? said exhaustchamber. I

8. A valve mechanism comprising a casz-the first saidvalve when it isnear each end a connecting the other end of the said passage t ing oneend ofthe-saidfpassage for controlling the same, and -'a secondyalveoperated by .5 the'movement QfthefirKSaid valve when it is near each endof its'rnbyement for cona,

nectingthe other end of the said'passage with: either the said inletor"the said eiihaust chamber. 1o

'ing having inlet anthexhaiust chambers and a -distri buting passage, areciprocating 9. A valve mechanism comprising a casvalve located at oneend of the said passage ated by the 'movementof the said valve, When thevalve is near each end [of its reciprocating movement, for connectingthe other end of the said passage .with' either 10.- A valve mechanismcomprising a cas- 11 ing having inletand exhaust chambers and I adistributing passage, a reciprocating valve M located at one end of thesaid passage for controlling the same, and a second recipro-.

eating valve; operated by the'movement of ofit's 'reci rocatingmovement, for connect- .ing the other end of the said passage with.eitlier the said"inlet or the said 'e xhaust chamber.

* 11. A valve mechanism comprising a casing having inlet andexhaustchambers and a distributing passage, a reciprocating valvelocated at one end of'the said passage for controlling .the same,-asecond valve for v with either the said inlet or'the said exhaust'chamber, and meanswhereby thelattisaid valve is movedby the first saidvalve near 40. one end of its movement to connect/the said passage withthe inlet chamber, and near the other "end: of its movement to connectthe said passage with the exhaust chamber.

412; A valvemechanism comprising :1 casing havinginlet and exhaustchambers, and 1.;including a cylindrical. element provided witha'gdistributing passage -therethrough, a

.Jpistonvalve within the cylindrical element and controlling the "innerend of the said w surrounding the said -cylindrical clement,narranged'to connect the outer end-of thedistr-ibuting passage as eitherthe land inlet,

distributing passage,fand :a tubular valve r the said exhaust chamber.-f

3. valve mechanism comprisi including 1 a cylindrical element provided Iwith a distributing passage therethrough,

a piston valve within" the cylindricalelement and controlling the innerend of the saiddistrib'uting passagdand a longitudi :2.nallymeciprocating tubular valve surroundthe cylindrical; element,arranged in one osition to connect the onterendof fon'controlling thesame, and means operthe said inlet or the said exhaust chain'berJ no vH. g, having lnletand exhaust chambers,- and inlet chamber, and inanother position to connect the outer end of the saiddistributingpassageflvith the said exhaust chamber.

"MQAT valve mechanism comprising a casin'g having'inlet and exhaustchambers and including- 1a, cylindrical element provlded with adistributing passage therethrough, a pistoiivalvje within thecylindrical element andcontrolling the inner end of the saiddistributingpassage, and a tubular valve surrounding the said cylindrical element,arrangedto connect the outer end 'of'the di tributing' passage witheither'the said inlet or'fthe said exhaust chamber, the said; tubularvalvefbeing pe'rated' by the movement 81? of the'first said valve.

15. A valve mechanism comprising a casing having inlet and exhaustchambers, and including a cylindrical elementv provided with adistributing passage therethrough, api'ston' valve within thecylindrical ele- 'ment and controlling the-inner end of the saiddistributing passage, and a reciprocat ing tubular valve surrounding thesaid cylindrical-clement, arranged to connect the outer endof thedistributing passage with ,either' the said inlet or the said exhaustchamber, the said tubular valve being longitudinally reciprocated by themovement of the first said valve. v 16. A valve mechanism com rising acasing having inlet and exhaust c ambers, and including a cylindrical"element provided with a distributing passage therethrougln a pistonvalve Within the cylindrical-ele- -ment and controlling the innerendofthe said "distributing passage, and a tubular valve surrounding the saidcylindrical elc- 'ment arranged to connect the outer end ofthe'filistributing .passage; with either the 105 said inlet or the saidexhaust chamber, the said tubular valve being connected in operativerelation with the first said valve near I the limit of its movementineither directionI -j .17. The combination with a working cyl- 1 inderand a casing containing a valve chamber, an inlet .chamber, an exhaustchamber, .a'idistributing' passage, and a pas sageleading ,fromthainterior of the valve chamber to the working cylinder, of a valve 11located viithin the said valvelcasing ior controllingfcommunicationbetween the latter said. 'as'sageand the innerand Of the said dist-rtutin'gpassa eg andanotherg-valve concentric-with the rst said;valvef-iand sur- 12 rounding'the same, for controlling the opposite endoithe said distributing assage and for conneetin it with either t c saidinlet .or the said ex iaust chamber l8. Thelcombination with a workingcyiinder 'and-a' casing eontainingwa valve chamber, an inlet chamber,any; exhaust chamber, a distributing passage, and a pa sage leading iorfi tfieiiitei'icfpffthe v'alve hambe rankin y tflexteiwa ve W locatedwithin the said valve casing for controlling communication between thelatter said {passage and the inner end of the said distributing passage,and another valve concentricwith the first said valve and surroundingthe same, for controlling the opposite end of the said distributingpassage and for connecting it with either the said inlet or the saidexhaust chamber, the latter 10 said valve being operated by the movementof the first said valve.

19. The combination with a working cylindex! andfa casing containing avalve chamber, inletchamber, an exhaust chamber,

a distributing passage, and a passage lead- 7 ing from the interior ofthe valve chamber to the working cylinder, of a reciprocating valvelocated within the said valve casing for controlling communicationbetween the latter said passage and the inner end of the saiddistributing passage, and another reciprocating valve concentric withthe first said valve and surrounding the same, for controlling theopposite end of the said distributing passage and for connecting it witheither the said inlet or the said exhaust chamber. v 1

, 20. The combination with a working cyl- .'inder and a-valve casinghaving a cylindriito-cal element containing a distributing passagethrough the walls thereof, the interior of the said cylindrical casingelement be ing in communication with the said working cylinder, and thesaid casing having inlet and'exhaust chambers, of a piston valve mountedin'the said cylindrical casing element, for controllingthe inner end ofthe said distributing passage, and closing it from communication withthe said workin 40 cylinder a. tubular valve surrounding the saicylindrical casing element, and arranged in one position to'connectthesaid distributing d passage withthe said exhaust'chamber, and means formovin'g the said tubular valve, by the reciprocation of the said pistonvalve,

to such position.

21. v The combination. with a. working. cyl inder and a valve casinghaving a cylindrical element containing adistributing passage through,the walls thereof, the interior of the said cylindrical casing elementbeing in; communicationwith the said, working cylinder, and the saidcasing having inlet and exhaust chambers, of a piston valve monntedinthe said'cylindrical casing element, for controlling the inner end ofthe Said distributing passage, and closing it from communication withtbesaid worki cylinder, a tubular valve surrounding the 80 saidcylindrical casing element, and arranged in oneposltlon to connect thesaid distributing passage with the said inlet" chamber, and means formoving the said tubular valve, by the reciprocation of the 6'5 saidpiston valve to such position.

slide valve, of operatin one direction than in the other. I

23. T bev combination with a valve and a reciprocating element connectedthereto, of

operating means therefor comprisin a rotating shaft, an eccentricthereon, an means connectingthe eccentric with the said reciprocatingelement, the axis of the said aft being so located with respect-to thesaid reciprocating element, that the said shaft will have a greaterangular .movement when moving the said element iaone 86 direction thanwhen moving it inthe other. 24. The combination with a reciprocatingslide valve, of operating means therefor comprising a rotating shaft, aneccentric thereon, and means connecting the eccentric v'90 with thevalve, the axis of'the said shaft being so located with respect'to theparts reciprocated by the said'eccentric as to cause the reciprocatingelement to move faster in one direction than in the other, 1 25. Thecombination with a reciprocating slide valve, of operatin means thereforcomprising a rotating s aft, an eccentric thereon, and means connectingthe eccentric with the valve, the axis of the said shaft being solocated with respect to the parts reciprocated by the said eccentric,that'the said shaft will have a greater angular movement. when movingthe said elementin one direction than when moving itin the other.

26. The combination with a valve and a reciprocating element connectedthereto,of operating means therefor comprising a rotating shaft, aneccentric thereon, and a connecting element mounted 'uponthe eccentric,and pivotallyiao;

A ted to the-saido' reci rocating element, the the shalt being disposedeccentric to e of movement 0 the axis of such pivots connection, wherebythe angular movement n5 of the shaft to move the valve in one directionwill be eat-er than the angular movement thereo to move the valve in theother direction.

2?. Tlfe combination with a'reciprocating means therefor comprisinga-rotating s aft, an. eccentric upon the shaft, and a connecting element.mounted upon the eccentric-and ivotally connected to a part movablewith t e Valve, 126

the axis of the shaft being disposed eccentric to thelinc of movement ofthe axis of such pivotal connection, whereby the angular movement of theshaft to move the valve in one direction will be greater than the angu-130 the otherdirection.

1 having inlet and exhaust chambers and a i the movement of the saidvalve for con-' I said vvalve, operating means. torthesaid located withrespect to the said reciprocatthe valve, the axis of the said shaftbeing .said shaft beingdisposed eccentric to the lineofunovementofthe'axas of such p1v-;

shaft,and a connecting elementmounted upon 1 centric thereon, and meansconnectingv the "havi distri u for control mg the said passage, an meansdistributing passage, :1 reciprocatin valve ,thesaidinlet or the saidexhaust chamber,

on, and a connecting element mounted upon lar moveincnt thereof to movethe valve in 28. The'combination wit-ha valve casing.

distributing passage, a valve for controlling the said passage, andmeans operated by necting the said passage with either the said inlet orthe said exhaust'chamber, of a reciprocating element connected to thevalve comprising a rotating shaft, an ece ric' with the saidrgciprocatingelcment the axis of the 'saidfsha-ft being'so ing element,as to cause'the said recipiocab ing element to move faster in "onedirection than in the other.

29, The combination'with a valve casing inlet and exhaust chambers and apassage, a reciprocatin valve operated by movementof the said valve forconnecting the said 'assage with either the said inlet or the sariexhaust chamber, of operating means for the said valve comprism arotating shaft, an eccentric there on, an means connecting the eccentricwith so located with respect to the parts reciprocated by the saideccentric as to causethe reciprocating element to move fas'ter in onedirection than in the other.

p 30. Thecombination with a valve casing having, inlet-and exhaustchambers and a' for contrpllingthe said passage, an nieans operatedbythe movement of, the "said .valve for connecting the said passage witheither of operating means for the said valve comprlslng a. rotatingshaft, an eccentric therethe'eccentric, and pivotally connected to thesaid reciprocating element, the axis of the otal connection, whereby thea'hgular move ment of the shaf to move the valvein one direction will begreater than the angular other dir tion,

31.:rflhe4combinationwith a valve casing gav ing inlet and exhaustchambers and a istributihg passage, areciprocating valve" forcontrollinglthe said passage, and means operated b8 the movement of thesaid valve for connecting'the said passage with'either the said inlet orthe said exhaust chamber, of operating means for the said valveconnprising a rotating shaft, an'eccentric upon the movement thereof to morethe valve in the a: a ko means whereby when'the said pin on" has openedthe said distributing pass "e the eccentric and pivotally, connected toa part movable with the valve, the axis of of the shaft to move thevalve inonedirecf' tionfwill be greater than the angular movedirection;

32.. The comblnatlon with a valve casing I mentthereof to move the valvein the other having a passage therein, and a' movable.

valve ton-controlling the said passage,-of 76 a rotary shaft, areciprocatin member be-1 yond the said shaft, the sai shaft being,

substantially between the said member and- 'i the said valve, meansconnectmgthe said on sa member with the said valve, an eccentric saidshaft, and means for connecting the said eccentric with the said:membein a 33. The combination of a' main eylinde "a second. cylinder, apassage connectingthe said cylinders, a

piston in the said second #35 cylinder, a passage throughthe wall oftiiesaid second cylinder, a movable sleevesub; rounding the .said secondcylinder, and

means for giving the said piston airecipros eating motion to open orclose said passage,

the said means also serving to movethe said;

sleeve,

34- The combination in-an intctnal eom-y bustion engingof main cylindercontains mg the, engine p ston, a second cylinder as having .aconnecting passe to the said main. cylinder, e-pzston m to e said secondcylinder, a distributing passe e through the wail of the saidfsecondcylin' er, a movable sleeve surrounding the said second cylinder" 1 b anintake chamber suriminding the said sleeve. an exhaust chamberv alsosurround mg the said sleeve, passages through th'e' said sleeve wherebywhen the' 'said metals the intake" chamber and when. in 'aniithe'rpositionthe said distribntingpnssageis put? into communication with theexhaust chem; ber. means for moving the and. means whereby when the saidpiston has shutoff communication between the main engine cylinder andthe said; distributing passage. thesaidsleeve s moved to the poslticr"in which the said distrihnting passage cent j mun-zcates wlth theexhaust, chamber, "adv to .open comman moved into, one position the saiddistribut mg. passage is put into commnnrfcationiwith' saidvalveepiston, 11:6

distributing passage its:

passage, and a val-veto! controlling the said passage, of a means foroperating said valve, to open or close thesaid passage, the said meanscomprising, in part a reci r'ocating m'embergja connecting rod pivoteton said member, and an eccentric rotating in said names rod and rotatingabout anaxis at one side of the line of reciprocation of said member,and means for throwing said passage into communication with the intakeor exhaust chambers, the said means being operated by the reciprocationof said member.

86. In an internal combustion engine combination of a cylinder, saidcylinder,

the

a second cylinderconstituting a valve casing parallel with the firstmentioned'cylinder, a passage connecting these two cylinders,a'piston-valve in the said second cylinder, a passage inthe wall of saidsecond cylinder, a crank-shaft, a casing supporting the said crank-shaftand inclosing one end of both of the said cylinders, and means withinthe said casing to operate the piston in the saidsecond cylinder to openthesaid passage therein during substanevery other revolution of saidcrank- 37. In valve mechanism the combination with a' valvecasing'comprising two concentric cylinders, the inner cylinder-"having adistributing passage through the well thereof, and the, outer cylinderhaving inlet and discharge passages therethrough, of a piston valveinthe inner cylinder, and asleeve mounted between the cylinders, forconnecting either the inlet or the discharge passage with thedistributing passage, the said sleeve being operated by the movement ofthe said piston valve.

, 38. In valve mechanism the combination with a valve casing comprisingtwo concentric cylinders, the inner cylinder having a distributingpassage through the wall there of,=:-an dthe outer cylinder having inletand discharge passages therethrough, of a piston valve in the innercylinder, and a sleeve mounted between. the cylinders, for -connectingeither the lionlet or the discharge passage with the distri utingpassage, the said sleeve being operated by the said piston valve nearthe limit of its movement.

39. In valve mechanism the combination with a valve casing comprisingtwo concen;

,tipic cylinders, the inner cylinder having a f 'giistributing passagethrough the wall there *of, and the outer cylinder havinginlet anddischarge passages therethrough, of a piston valve in the innercylinder, a sleeve mounted between the cylinders, for connecting eitherthe inlet or the discharge passage with the a piston in the distributingpassage,

a rotating shaft, an eccentric thereon, and means connecting theeccentric with the piston valve, the rotating shaft being so disposedwith relation to the 1 parts reciprocated by the eccentric filt'lb itwill have a greater angular movement when moving the valve inv onedirection than-when moving it in the other. I

l0. Invalve mechanism th e combination with a valve casing comprisingtwo concentric cylinders,-the inner cylinder having a distributingpassage through the wall thereof, and the outer cylinder having inletand discharge passages theret-hrough, of a piston valve in the innercylinder, a sleeve mounted between the cylinders for connecting eitherthe inlet or the discharge passag fwith the distributing passage, aneccentric-thereon, and means connecting the eccentric with the pistonvalve, therotating shaft being so disposed with relation to the partsreciprocated by the eccentric that it will have a greater angularmovement when moving the valve in one direction than when moving it inthe other, thesaid sleeve being operated by the movement of the saidpiston valve.

41. In valve mechanismthe combination with a valve casing comprising twoconcentric cylinders, the inner cylinder having a distributing passagethrough the wall thereof, and the outer cylinder haiving inletanddischarge passages therethrou valve in the inner cylinder, a s eevemounted betwcen'the cylinders, torconnecting either the inlet or thedischarge passage with the.

distributing passage, a rotating shaft, an eccentric thereon, and meansconnecting the eccentric with the piston valve, the rotating shaft beingso disposed with relation to the parts reciprocated by the eccentricthat it will have a greater angular movement when moving the valve inone direction than when moving it in the other, the said sleeve beingoperated by the said piston valve near the limit of its movement ineither direction.

a rotating shaft,

h, of a piston In testimony whereof, I have signed my name to thisspecification-in the presence of two subscribing witnesses, this firstday of July, 1909.

' ALDEN E. OSBORN.

Witnesses: JOHN H GRATAoim,

Annm on E. Osnomv.

